您要查找的是不是：
- collector lens focusing knob 聚光透镜调焦旋钮
- Go back and redo the optical lens focus for green only. 回去和重复光学的透镜焦点为了绿色唯一的.
- The motor controller and software can also drive an optional Z axis or focus motor which can be fitted to the fine focus knob of most of the newer microscopes. 电机控制器和软件也可以驱动Z轴或聚焦电机，聚焦电机可以安装到最新显微镜的细调旋钮上。
- In the1940' s Brandt found an old Kodak box camera with a wide-angle lens focused on infinity and began using it to photograph nudes. 在本世纪四十年代，他找到了一架有广角镜、以无限聚焦的旧式柯达箱形照相机，于是就开始用它来拍摄裸体。
- In the 1940's Brandt found an old Kodak box camera with a wide-angle lens focused on infinity and began using it to photograph nudes. 在本世纪四十年代，他找到了一架有广角镜、可以无限聚焦的旧式柯达箱形照相机，于是就开始用它来拍摄裸体。
- The Divergent Thought on the Convex Lens'Focusing Experiment 凸透镜聚焦原理的多角度实验验证
- For decades, scientists have likened our visual-processing machinery to a television camera: the eye's lens focuses incoming light onto an array of photoreceptors in the retina. 数十年来，科学家将人类的视觉处理机具比拟成摄影机：眼睛里的水晶体将入射光聚焦投射到视网膜的感光受器阵列。
- Therefore, this approximate method is applied to the measurement of the lens focus, and the focus error between the approximate method and traditional method is less than 1%. 利用该方法对透镜的焦距进行了测量，将测量结果与传统方法测得的焦距进行比较，两者误差不到1%25。
- Twist the knob to the right setting. 把旋钮拧到适当的定位挡上。
- This knob is only held on by sellotape. 这个旋钮只是用透明胶带固定住的。
- He pressed the knob and the lid flew open. 他揿了揿按钮，盖子就猛地弹开了。
- My husband is a stamp collector. 我丈夫是个集邮者。
- A knob, knot, or other small protuberance. 球形突出物，树瘤球形突出物、节瘤或其它小的突出物
- As he turned the knob, the sound diminished. 他一转旋钮，声音就变小了。
- This lens can magnify 20 diameter. 这个透镜能放大20倍。
- A collector of taxes or tribute from the public. 征收员从公众那儿收取赋税或贡物的人
- A knob, knot, protuberance, or swelling. 节，结，瘤球状物、结、节疤或肿瘤
- The stamp collector decided to get that rare stamp at all costs. 这个集邮迷决心无论代价如何都要搞到那枚稀有的邮票。
- Some adjustment of the lens may be necessary. 可能有必要调节一下镜头。
- Do you have soft contact lens care product? 有没有软性隐型眼镜保养用品？
